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