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