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