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