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