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