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