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