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