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