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