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