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