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