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)(18,24)(19,22)(20,30)(29,32)(36,44)(40,45)(42,48)(46,47) involution — undirected(3,9)(7,13)(10,15)(14,16)(17,18)(19,27)(20,21)(22,25)(23,24)(26,30)(28,29)(31,32)(34,38)(39,41)(40,45)(46,47) involution — undirected(2,6)(7,13)(8,11)(14,16)(17,19,23,22)(18,25,24,27)(20,28,30,31)(21,32,26,29)(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)(18,26)(19,28)(21,24)(22,31)(23,30)(25,29)(27,32)(1,2)(3,7)(4,8)(5,6)(9,13)(10,14)(11,12)(15,16)(17,21,23,26)(18,20,24,30)(19,29,22,32)(25,31,27,28)(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)(17,22,23,19)(18,25,24,27)(20,31,30,28)(21,32,26,29)(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.