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