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