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