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