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