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