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