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