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