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