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