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