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