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