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