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