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