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