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