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