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