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