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