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