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