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