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