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