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