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