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