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