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