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