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