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