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