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)(21,22,25,28,26,30,24,29)(23,27,33,36,32,34,31,35)(1,2,4,3)(5,7,9,13)(6,12,14,8)(10,16,11,17)(15,19,20,18)(21,23,25,33,26,32,24,31)(22,27,28,36,30,34,29,35)(5,8,9,12)(6,13,14,7)(10,19,11,18)(15,16,20,17)(22,28)(23,31)(24,25)(29,30)(32,33)(35,36)(1,3,4,2)(6,14)(7,13)(15,20)(16,17)(23,32)(27,34)(31,33)(35,36)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.