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