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