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