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