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)(17,18,22,20)(19,27,30,24)(21,31,28,25)(23,26,32,29)(1,3,5,4)(2,6,8,7)(17,19,22,30)(18,24,20,27)(21,29,28,26)(23,31,32,25)(10,13)(14,16)(17,20,22,18)(19,28,30,21)(23,26,32,29)(24,31,27,25)(1,3,5,4)(2,7,8,6)(9,11,12,15)(10,14,13,16)(17,21,22,28)(18,25,20,31)(19,29,30,26)(23,27,32,24)(1,4,5,3)(2,6,8,7)(19,25)(21,27)(23,32)(24,28)(26,29)(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.