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