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