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