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