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