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