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