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