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