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