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