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