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