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