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