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