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