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