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)(19,21)(20,24)(22,25)(23,26)(27,29)(28,30)(31,32)(33,34)(35,36)(37,40)(38,41)(39,43)(42,44)(45,46)(47,48)(1,3,6,4)(2,7,9,10)(5,11,14,12)(8,15,13,16)(17,19)(18,20)(21,26)(22,27)(23,24)(25,28)(29,32)(30,31)(35,39)(36,43)(42,47)(44,48)(1,2)(3,10)(4,7)(5,8)(6,9)(11,16)(12,15)(13,14)(17,20,23,21)(18,24,26,19)(22,28,31,29)(25,30,32,27)(33,35,38,39)(34,36,41,43)(37,42,46,47)(40,44,45,48)(1,2)(3,7)(4,10)(5,8)(6,9)(11,15)(12,16)(13,14)(17,19)(18,20)(21,26)(22,30)(23,24)(25,29)(27,31)(28,32)(33,34)(35,36)(37,45)(38,41)(39,43)(40,46)(42,48)(44,47) involution — undirected(1,4,6,3)(2,7,9,10)(5,12,14,11)(8,15,13,16)(17,21,23,20)(18,24,26,19)(22,29,31,28)(25,30,32,27)(33,36)(34,39)(35,41)(37,44)(38,43)(40,47)(42,45)(46,48)(1,5,6,14)(2,8,9,13)(3,11,4,12)(7,15,10,16)(17,22,23,31)(18,25,26,32)(19,27,24,30)(20,28,21,29)(33,37)(34,40)(35,42)(36,44)(38,46)(39,47)(41,45)(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.