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