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