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