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