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