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