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