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