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