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