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