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