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