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