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