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