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