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