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