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