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