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