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