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