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