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