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