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