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