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