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