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