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)(11,14)(12,13)(15,16)(17,18,21,26)(19,28,20,24)(22,27,23,32)(25,30,29,31)(1,3)(2,6)(4,7)(5,8)(17,19,21,20)(18,24,26,28)(22,31,23,30)(25,27,29,32)(1,4,5,2)(3,7,8,6)(10,13)(14,16)(17,18,21,26)(19,29,20,25)(22,32,23,27)(24,30,28,31)(3,8)(6,7)(9,11,12,15)(10,14,13,16)(17,20)(18,25)(19,21)(22,31)(23,30)(24,32)(26,29)(27,28)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.