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