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