One vertex per element, one color per generator, with an edge from x to x·s.
(1,2) involution — undirected(3,4,7,9)(5,11,12,18)(6,14,16,10)(8,15,17,13)(24,30)(31,34)(3,5)(4,8)(6,15)(7,12)(9,17)(10,18)(11,14)(13,16)(19,20)(21,24)(22,25)(23,26)(27,31)(28,30)(29,32)(33,34) involution — undirected(19,21,23,28)(20,24,26,30)(22,27,29,33)(25,31,32,34)(4,9)(5,12)(10,14)(13,15)(19,22,23,29)(20,25,26,32)(21,27,28,33)(24,31,30,34)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.