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