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)(11,12)(13,15)(14,16)(17,18)(19,24)(20,30)(21,26)(22,27)(23,25)(28,31)(29,32)(1,3,5,8)(2,6,4,7)(17,19)(18,24)(20,29)(21,27)(22,26)(23,28)(25,31)(30,32)(1,2,5,4)(3,6,8,7)(9,11,14,13)(10,15,16,12)(18,25)(19,28)(20,27)(26,32)(9,12,14,15)(10,11,16,13)(17,20,23,27)(18,22,25,30)(19,29,28,21)(24,26,31,32)(1,2,5,4)(3,6,8,7)(9,13,14,11)(10,15,16,12)(17,21,23,29)(18,26,25,32)(19,27,28,20)(22,31,30,24)(1,4,5,2)(3,7,8,6)(17,22)(18,27)(19,26)(20,25)(21,24)(23,30)(28,32)(29,31)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.