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