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