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