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