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