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