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