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