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