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