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