One vertex per element, one color per generator, with an edge from x to x·s.
(1,2) involution — undirected(4,7)(8,10)(12,15)(13,17)(19,20,24,28)(21,22,26,25)(23,31,32,27)(29,33,34,30)(11,12,14,15)(13,16,17,18)(21,26)(22,25)(29,34)(30,33)(3,4,6,7)(5,8,9,10)(11,12)(13,16)(14,15)(17,18)(19,21,24,26)(20,25,28,22)(23,29,32,34)(27,33,31,30)(3,5,6,9)(4,8,7,10)(11,13,14,17)(12,16,15,18)(19,22,24,25)(20,26,28,21)(23,30,32,33)(27,34,31,29)(19,23,24,32)(20,27,28,31)(21,29,26,34)(22,30,25,33)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.