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