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