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