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