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