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