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