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