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