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)(9,14)(13,17)(15,18)(22,29)(24,30)(25,32)(27,33) involution — undirected(3,5,8,15)(4,9,11,17)(6,14,7,13)(10,18,16,12)(19,20)(21,24)(22,25)(23,26)(27,31)(28,30)(29,32)(33,34)(19,21,23,28)(20,24,26,30)(22,27,29,33)(25,31,32,34)(3,6,8,7)(4,10,11,16)(5,13,15,14)(9,12,17,18)(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.