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