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