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