One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,10,13,7)(4,14)(5,8)(6,9)(11,15,12,16)(17,18)(19,25,27,32)(20,24)(21,23)(22,26,30,28)(29,31)(33,34,36,40,37,39,45,47)(35,41,43,48,42,38,44,46)(1,3)(2,7)(4,11)(5,12)(6,13)(8,15)(9,10)(14,16)(17,19)(18,22)(20,28)(21,27)(23,30)(24,32)(25,31)(26,29)(33,35)(34,38)(36,44)(37,42)(39,41)(40,48)(43,45)(46,47) involution — undirected(1,4,6,5)(2,8,9,14)(3,11,13,12)(7,15,10,16)(18,23)(22,30)(24,31)(25,32)(34,39)(35,42)(40,47)(43,44)(1,5,6,4)(2,8,9,14)(3,12,13,11)(7,15,10,16)(34,39)(38,41)(40,47)(46,48)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.