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