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