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