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