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