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