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