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