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