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