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