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