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