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