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