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