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