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