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