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