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