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