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