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