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