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