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