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