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