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