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