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