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