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