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