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