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