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