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