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