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