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