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