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