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