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