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