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