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