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