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