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