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