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