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