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