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