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