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