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)(17,18,22,25)(19,23,26,30)(20,21,24,29)(27,28,31,32)(33,34)(35,41)(36,44)(37,38)(39,43)(40,46)(42,47)(45,48)(1,2)(3,7)(4,8)(5,9)(6,10)(11,14)(12,15)(13,16)(17,19)(18,23)(20,27)(21,28)(22,26)(24,31)(25,30)(29,32)(34,38)(39,41)(40,44)(47,48) involution — undirected(3,8)(4,7)(5,13)(9,16)(19,26)(20,24)(21,29)(23,30)(33,35,37,43)(34,39,38,41)(36,45,46,42)(40,48,44,47)(1,3)(2,7)(4,10)(5,11)(6,8)(9,14)(12,16)(13,15)(17,20)(18,21)(19,27)(22,24)(23,28)(25,29)(26,31)(30,32)(33,35)(34,39)(36,42)(37,43)(38,41)(40,47)(44,48)(45,46) involution — undirected(1,4,6,7)(2,8,10,3)(5,12,13,14)(9,15,16,11)(17,21)(18,24)(19,28)(20,25)(22,29)(23,31)(26,32)(27,30)(33,34)(35,41)(36,40)(37,38)(39,43)(42,48)(44,46)(45,47)(1,5,6,13)(2,9,10,16)(3,11,8,15)(4,12,7,14)(17,19)(18,23)(20,27)(21,28)(22,26)(24,31)(25,30)(29,32)(33,36)(34,40)(35,42)(37,46)(38,44)(39,47)(41,48)(43,45)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.