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