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