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