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