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