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