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