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