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