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)(19,20)(21,27)(22,30)(23,25)(24,29)(26,31)(28,34)(32,33)(3,5)(4,8)(6,15)(7,12)(9,17)(10,18)(11,14)(13,16)(22,31)(26,30)(27,34)(29,32) involution — undirected(6,16)(10,14)(11,18)(13,15)(19,21)(20,24)(22,32)(23,28)(25,33)(26,34)(27,30)(29,31) involution — undirected(4,9)(5,12)(10,14)(13,15)(20,25)(24,33)(26,30)(27,34) involution — undirectedA 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.