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