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