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