Obviously things change, but there are links in the readme spreadsheet that will be useful if TfL keep the spider maps bang up to date with route changes.
http://www.busmaps.london-underground.d ... erMaps.zip
It's 90.9MB, by the way.
That's about 12 minutes on a 1MB connection, 6 minutes on a 2MB connection - a lot less time on much faster connections - you do the math

And cheers once again to Beary for hosting this monstrosity!