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