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