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