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