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