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