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