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