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