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