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