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