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)(19,24)(20,21)(22,30)(23,25)(26,31)(27,29)(28,32)(33,34,38,42)(35,39,43,46)(36,40,45,48)(37,41,47,44)(2,7)(4,9)(8,13)(12,15)(17,19,23,20)(18,24,25,21)(22,27,31,28)(26,32,30,29)(33,35)(34,39)(36,44)(37,40)(38,43)(41,45)(42,46)(47,48)(2,7)(3,10)(5,14)(12,15)(18,25)(19,20)(22,31)(29,32)(35,43)(36,45)(39,46)(40,48) involution — undirected(1,3,6,10)(2,4,7,9)(5,11,14,16)(8,12,13,15)(17,20,23,19)(18,21,25,24)(22,28,31,27)(26,29,30,32)(33,36)(34,40)(35,44)(37,39)(38,45)(41,43)(42,48)(46,47)(1,4)(2,3)(5,12)(6,9)(7,10)(8,11)(13,16)(14,15)(17,21)(18,20)(19,25)(22,29)(23,24)(26,28)(27,30)(31,32)(33,37)(34,41)(35,40)(36,46)(38,47)(39,45)(42,44)(43,48) involution — undirected(1,5,6,14)(2,8,7,13)(3,11,10,16)(4,12,9,15)(17,22)(18,26)(19,27)(20,28)(21,29)(23,31)(24,32)(25,30)(33,35)(34,39)(36,44)(37,40)(38,43)(41,45)(42,46)(47,48)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.