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