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