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