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