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