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