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