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