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