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