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