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