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