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