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