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