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