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