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