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