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