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