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