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