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