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