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