One vertex per element, one color per generator, with an edge from x to x·s.
(5,6,9,13,17,12,28,29,10,15,23,30,8,14,21,22)(7,16,19,31,32,27,35,36,20,26,34,33,18,11,24,25)(1,2,3,4)(5,7,17,32,10,20,8,18)(6,11,14,26,15,27,12,16)(9,19,28,35,23,34,21,24)(13,25,22,33,30,36,29,31)(2,4)(5,6)(7,11)(8,12)(9,22)(10,15)(13,21)(14,17)(16,18)(19,33)(20,27)(23,29)(24,25)(26,32)(28,30)(31,34)(35,36) involution — undirected(9,23)(13,30)(19,34)(21,28)(22,29)(24,35)(25,36)(31,33) 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.