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