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