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