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)(17,18,22,25,23,20,21,29)(19,24,26,32,27,28,30,31)(1,3,5,8)(2,6,4,7)(9,10)(11,13)(12,15)(14,16)(17,19)(18,24)(20,28)(21,30)(22,26)(23,27)(25,32)(29,31)(1,4,5,2)(3,7,8,6)(9,11,13,10)(12,15,16,14)(17,20)(18,23)(19,24)(21,29)(22,25)(26,31)(27,28)(30,32)(3,8)(6,7)(10,11)(14,15)(17,19)(18,24)(20,28)(21,30)(22,26)(23,27)(25,32)(29,31) involution — undirected(9,12,13,16)(10,14,11,15)(17,21,23,22)(18,25,20,29)(19,26,27,30)(24,31,28,32)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.