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