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