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