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