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