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