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