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