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