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