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