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