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