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