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