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