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