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