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