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