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