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