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