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