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