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