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