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