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