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