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)(21,22,24,28,25,29,31,35)(23,30,32,36,33,26,34,27)(6,9)(10,12)(13,15,16,19)(14,17,18,20)(21,23,31,34,25,33,24,32)(22,26,35,36,29,30,28,27)(2,4)(5,7)(6,10)(8,11)(9,12)(21,23,25,33)(22,27,29,36)(24,34,31,32)(26,35,30,28)(7,11)(10,12)(14,18)(17,20)(21,24,25,31)(22,28,29,35)(23,32,33,34)(26,27,30,36)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.