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