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