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