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