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