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