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