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