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