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