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