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