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