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