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)(11,13)(12,14)(15,16)(17,18,24,29,22,26,23,27)(19,28,32,20,30,25,21,31)(1,3,5,8)(2,6,4,7)(9,10)(11,15)(12,14)(13,16)(17,19)(18,25)(20,27)(21,23)(22,30)(24,32)(26,28)(29,31)(9,11)(10,13)(12,16)(14,15)(17,20,22,31)(18,21,26,32)(19,29,30,27)(23,25,24,28)(1,4,5,2)(3,6,8,7)(11,16)(13,15)(17,21)(18,20)(19,24)(22,32)(23,30)(25,29)(26,31)(27,28)(10,14)(13,15)(18,26)(19,30)(21,32)(27,29) involution — undirectedA 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.