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