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