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