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