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