The song is composed of three main riffs that alternate

Main Riff:

G|--------10--10--8--8-----------------------------|
D|----------------------10--10--8--8------8--------|
A|--(8)--8------------------------------11-----8---|
E|-------------------------------------------------|

Second Riff


G|--------11--11--9--9-----------------------------|
D|----------------------11--11--9--9------9--------|
A|--(9)--9------------------------------12-----9---|
E|-------------------------------------------------|

Third Riff:


G|--------15--15--13--13------------------------------|
D|----------------------15--15--13--13------13--------|
A|--(13)--13------------------------------16-----13---|
E|----------------------------------------------------|

Then just play some fills occasionally based on these patterns.