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