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