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