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