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