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