E|--------------------------------|
B|--------------------------------|
G|-----0-----3-3-0----------------|
D|--2-----2--------3-0------------|
A|--3----------------------0-2----|
E|-----------------------3-----3--|

After the main riff, three G chords are played. Listen to the song for timing.

Starting at around 0:18, the rhythm guitar plays this over the main riff. More 
over which strings are hit, but this is the main idea.
E|----------------------------------|
B|--5--5--5--6--5--6--5---3--3--3---|
G|--5--5--5--5--5--5--5---4--4--4---|
D|--5--5--5--5--5--5--5---5--5--5---|
A|----------------------------------|
E|----------------------------------|