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