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