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