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