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