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