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