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