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