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