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)(11,14)(12,13)(15,16)(17,18,21,22)(19,20,24,23)(27,28)(31,32)(1,3)(2,6)(4,7)(5,8)(9,10,13,12)(11,15,16,14)(17,18)(19,20)(21,22)(23,24)(25,26,30,29)(27,32,28,31)(3,8)(6,7)(10,12)(14,15)(18,22)(20,23)(25,27,30,28)(26,31,29,32)(1,4,5,2)(3,7,8,6)(9,11)(10,14)(12,15)(13,16)(17,19)(18,23)(20,22)(21,24)(25,28,30,27)(26,32,29,31)(1,3)(2,6)(4,7)(5,8)(9,12,13,10)(11,15,16,14)(17,20,21,23)(18,19,22,24)(25,29,30,26)(27,32,28,31)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.