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