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)(11,14)(12,15)(13,16)(17,18,23,26)(19,24,28,32)(20,22,30,27)(21,25,31,29)(1,3,5,8)(2,6,4,7)(9,11,14,10)(12,15,13,16)(17,19,23,28)(18,24,26,32)(20,29,30,25)(21,27,31,22)(9,12)(10,15)(11,16)(13,14)(17,20,22,26,23,30,27,18)(19,25,21,24,28,29,31,32)(1,4,5,2)(3,6,8,7)(9,13,14,12)(10,16,11,15)(17,21)(18,25)(19,27)(20,24)(22,28)(23,31)(26,29)(30,32)(10,11)(15,16)(18,26)(19,28)(20,30)(21,31) 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.