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