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