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