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