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