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