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