Intro
e|---9--------9--------9--------9--------9--------9--------9--------9------------|
B|-------10-------10-------10-------10-------10-------10-------10-------10-------|
G|-----6----6---6----6---7----7---7----7---9----9---9----9---7----7---7----7-----|
D|-------------------------------------------------------------------------------|
A|-------------------------------------------------------------------------------|
E|-------------------------------------------------------------------------------|

There is also another way to do the intro which I find easier and sounds a bit more accurate.
e|-----------------------------------------------------------------------------------------------------|
B|---14----------14----------14----------14----------14----------14----------14----------14------------|
G|---------14----------14----------14----------14----------14----------14----------14----------14------|
D|------11----11----11----11----12----12----12----12----14----14----14----14----12----12----12----12---|
A|-----------------------------------------------------------------------------------------------------|
E|-----------------------------------------------------------------------------------------------------|

The second part to the riff can start out like this:
e|---------------               e|-----------------|
B|-----10---10---               B|-----------------|
G|---6----6------ or like this: G|------14----14---|
D|---------------               D|---11----11------|
A|---------------               A|-----------------|
E|---------------               E|-----------------|

Of course, I prefer the second way.

The rest of the second part to the riff.
e|-----------------------------------------------|
B|-----------------------------------------------|
G|------14----14----10----10----9----9---9---9---|
D|---11----11----12----12----11---11---9---9-----|
A|-----------------------------------------------|
E|-----------------------------------------------|

Also, they hit an A octave as Tom usually tends to use in his songs.
e|---------        e|---------------------|
B|---------        B|---------------------|
G|--------- and... G|---------------------|
D|---7-7---        D|---7---7---7-7-7-7---|
A|---0-0---        A|---0---0---0-0-0-0---|
E|---5-5---        E|---5---5---5-5-5-5---|