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