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