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