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