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