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