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)(21,22,27,32)(23,29,33,36)(24,28,34,35)(25,31,26,30)(5,7)(6,10)(8,14)(9,13)(11,17)(12,16)(15,19)(18,20)(21,23,26,34,27,33,25,24)(22,28,31,36,32,35,30,29)(2,4)(7,13)(10,16)(14,19)(17,20)(21,24,25,33,27,34,26,23)(22,29,30,35,32,36,31,28)(5,8)(6,11)(7,14)(9,15)(10,17)(12,18)(13,19)(16,20)(23,33)(24,34)(28,35)(29,36) involution — undirected(8,15)(11,18)(14,19)(17,20)(23,33)(24,34)(28,35)(29,36) 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.