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