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