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