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