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