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