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