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