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