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