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