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