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