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